| 23 | #endif |
| 24 | |
| 25 | NTSTATUS |
| 26 | Ext2Close (IN PEXT2_IRP_CONTEXT IrpContext) |
| 27 | { |
| 28 | PDEVICE_OBJECT DeviceObject; |
| 29 | NTSTATUS Status = STATUS_SUCCESS; |
| 30 | PEXT2_VCB Vcb = NULL; |
| 31 | PFILE_OBJECT FileObject; |
| 32 | PEXT2_FCB Fcb = NULL; |
| 33 | PEXT2_CCB Ccb = NULL; |
| 34 | |
| 35 | BOOLEAN VcbResourceAcquired = FALSE; |
| 36 | BOOLEAN FcbResourceAcquired = FALSE; |
| 37 | BOOLEAN FcbDerefDeferred = FALSE; |
| 38 | |
| 39 | __try { |
| 40 | |
| 41 | ASSERT(IrpContext != NULL); |
| 42 | ASSERT((IrpContext->Identifier.Type == EXT2ICX) && |
| 43 | (IrpContext->Identifier.Size == sizeof(EXT2_IRP_CONTEXT))); |
| 44 | |
| 45 | DeviceObject = IrpContext->DeviceObject; |
| 46 | if (IsExt2FsDevice(DeviceObject)) { |
| 47 | Status = STATUS_SUCCESS; |
| 48 | Vcb = NULL; |
| 49 | __leave; |
| 50 | } |
| 51 | |
| 52 | Vcb = (PEXT2_VCB) DeviceObject->DeviceExtension; |
| 53 | ASSERT(Vcb != NULL); |
| 54 | ASSERT((Vcb->Identifier.Type == EXT2VCB) && |
| 55 | (Vcb->Identifier.Size == sizeof(EXT2_VCB))); |
| 56 | |
| 57 | if (IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_DELAY_CLOSE)) { |
| 58 | |
| 59 | FileObject = NULL; |
| 60 | Fcb = IrpContext->Fcb; |
| 61 | Ccb = IrpContext->Ccb; |
| 62 | |
| 63 | } else { |
| 64 | |
| 65 | FileObject = IrpContext->FileObject; |
| 66 | Fcb = (PEXT2_FCB) FileObject->FsContext; |
| 67 | if (!Fcb) { |
| 68 | Status = STATUS_SUCCESS; |
| 69 | __leave; |
| 70 | } |
| 71 | ASSERT(Fcb != NULL); |
| 72 | Ccb = (PEXT2_CCB) FileObject->FsContext2; |
| 73 | } |
| 74 | |
| 75 | DEBUG(DL_INF, ( "Ext2Close: (VCB) Vcb = %p ReferCount = %d\n", |
| 76 | Vcb, Vcb->ReferenceCount)); |
| 77 | |
| 78 | /* |
| 79 | * WARNING: don't release Vcb resource lock here. |
| 80 | * |
| 81 | * CcPurgeCacheSection will lead a recursive irp: IRP_MJ_CLOSE |
| 82 | * which would cause revrese order of lock acquirision: |
no test coverage detected